Mounting bracket, both legs perforated throughout, for the manufacture of supporting structures with system components. Dimensions (approx. dimensions) Angle profile: 50 x 40 mm Profile thickness t: 3.5 mm Angle perforation on both sides, single row: 11 x 40 mm Center distance: 50 mm Length L: 4500 mm Material: Steel, hot-dip galvanized in accordance with DIN EN ISO 1461